phpDocumentor: No "page-level docblock" but worked without problemssome days ago

I am using phpDocumentor to generate documentation for my files. This
worked without problems but today it told me "has no page-level
DocBlock, use @package in the first DocBlock to create one" for ALL of
my files, but I definetely have those @package lines.

Did anyone observe this strange behaviour? Any tips for me?

Perhaps new versions of PEAR/PHP/Zend Optimizer I installed recently
damaged the installation. I reinstalled phpDocumentor several times
(manually AND using PEAR) but that didn't help.


AllOlli

Followup:
I found out it works from the command line but not from within the
webinterface, using the same .ini file !?

AllOLLi